Vise.



W. KBIRN.

VISE. v

APPLIOATION FILED MA11.19,190'1.

. Kan,

WLF/M5555 y [NVE/WOR 1 r A r P A TTORNEYS PATENT oEEIoE.

WILLIAM KEIEN, or Wicnrri, KAIvsAs.-

l vIsE.

Speccation oflLetters Patent. Patented March`16, 1909.

Application led March 19, 1907. Serial No. 363,190.

To all whom it may concern.

Be it known that I, WILLIAM KEIEN, a citizen' of the United States, residing at Wichita, -in the county of Sedgwick and State of Kansas, have invented a new and useful Vise, of which the following is a speciiication.

This invention relates to vises for gripping and holding stud bolts', ni ples, and other objects having screw threa s thereon.

The object of the invention is to provide a simple form of device of this character which w1ll tightly grip the threaded object without injuring the threads' thereon', said device having simple and eflicient means whereby the same can be tightly clamped upon the object therein.

Another object of the invention is to provide a device of this character formed of two parts, the jaws of said device being formed Integral with the body thereof. Heretofore in the construction of devices of this character it has been customary to provide the same with removable threaded members connected to the jaws of the tool, one or more of said jaws being pivotally connected. This other device whereb t construction has added considerably to the cost of the device as wellas impaired its efficiency.

It is the object of the invention to over-` come these objectionable features by simplifing and strengthening the construction of t e device as well as chea ening its cost.

With these and other o jects in view the invention consists of 'certain novel features of construction and combinations of parts which will. be hereinafter more fully described and pointed out in the claims.

` In the accompanying drawings is vshown the preferred form 'of the invention.

In said drawings: Figure 1 is a section through the clamping portion of the device, the balance thereof being shown in elevation Fig.` 2 is a side elevatlon showing-the dev vice in position upon a stud bolt; and Fig. 3

is an end view of the device.

Referring to the figures by characters of reference, 1 is a shank preferably cylindrical in form and having an angular head 2 at one end designed to be engpged a wrench or e sha may be held against rotation. ne endV of the shank is `zz graduallyfnlarged to form a frusto-conical head 3 having screw threadsupon its outer surface, as shown at 4. This head is slotted longitudinally as shown at 5 to form a plurality of similar jaws, the inner or adjoining edges of which form a bore 6 and are screw threaded as shown at 7. A clam ing sleeve 8 in the form of a nut surroun s the jaws constituting the head and has a tapered screw threaded opening 9 therein designed to engage. the threads 4. It is of course understood that the jaws constituting the head 3 constitute an integral part of the shank 1 and therefore the entire device is formed' of but two parts, to wit, the shank and the portions formed therewith and the clamping sleeve. A

The bore 6 is roportioned so as to receive the bolt or nipp e to be rotated so that the threads upon said bolt or nipple will be engaged by the threads 7. When it is desired to rotate a threaded object by means of this tool said Objectis screwed into the bore 6 formed by the jaws 3 and the head 2 is held by means of a wrench or other device while the sleeve 8 is screwed upon the jaws 3.' As the outer faces of these jaws are Inclin'ed the jaws will'be pressed `inward against the very simple, durable and inexpensive in con-- struction and constitutes an efficient means for holding threaded objectswithout injury to the threads thereon.

What is claimed is:

A vise comprising a solid cylindrical shank having a reduced angular head at one end and a frusto-conical cnlar ement at its other end, said enlargement gra uall increasin in v diameter from the shank to u e free en of the enlargement, said shank being smooth throughout its length and said enlargement 4being exteriorly screw-threaded, there being a screw-threaded bore eXtendin longitud-inally within the enlar ement an terminating adjacent the sma end of said .enlargement, said enlargement bein also provided with -spaced longitudinal s ots intersecting the threads u on the outside surface and the wall of the bore, those portions of the enlargement between the slot forming jaws, and a nut havin a frusto-conical o ening extending theret rough and provided with screw-threads therein, said nut being my own, I have hereto aiXed my signature designed to slip longitudinally along the in the presence of two Witnesses. shank 1 and against the enlarged en por- WILLIAM KEIRN tion, the rotation of the nut upon said en- 5 larged portion causing the contraction of said Witnesses:

portion. H, F. RICE,

l In testimony that I claim the foregoing as ROY J. HUDSON. 

